clean up stray whitespace

This will help us migrate the code to platform2.

BUG=chromium:886953
TEST=CQ passes

Change-Id: I83fd92899603841f94f84b183df586910a2e7a00
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/dm-verity/+/2348389
Reviewed-by: Amin Hassani <ahassani@chromium.org>
Reviewed-by: Jorge Lucangeli Obes <jorgelo@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
Commit-Queue: Mike Frysinger <vapier@chromium.org>

PRESUBMIT.cfg

diff --git a/PRESUBMIT.cfg b/PRESUBMIT.cfg
index 08242af..ee52980 100644
--- a/PRESUBMIT.cfg
+++ b/PRESUBMIT.cfg
@@ -2,8 +2,7 @@
 # Comment out the disable-flags for any checks you want to leave enabled.
 
 [Hook Overrides]
-#stray_whitespace_check: false
+stray_whitespace_check: true
 #long_line_check: false
 cros_license_check: false
 #tab_check: false
-

file_hasher.cc

diff --git a/file_hasher.cc b/file_hasher.cc
index 1066965..68d5458 100644
--- a/file_hasher.cc
+++ b/file_hasher.cc
@@ -132,5 +132,3 @@
 }
 
 }  // namespace verity
-
-

include/asm/page.h

diff --git a/include/asm/page.h b/include/asm/page.h
index 8883b33..5ebe34d 100644
--- a/include/asm/page.h
+++ b/include/asm/page.h
@@ -1,7 +1,7 @@
 /* Copyright (C) 2010 The Chromium OS Authors. All rights reserved.
  * Use of this source code is governed by the GPL v2 license that can
  * be found in the LICENSE file.
- * 
+ *
  * Parts of this file are derived from the Linux kernel from the file with
  * the same name and path under include/.
  */

include/crypto/hash.h

diff --git a/include/crypto/hash.h b/include/crypto/hash.h
index 3bb6ca6..531321f 100644
--- a/include/crypto/hash.h
+++ b/include/crypto/hash.h
@@ -1,11 +1,11 @@
 /*
  * Hash: Hash algorithms under the crypto API
- * 
+ *
  * Copyright (c) 2008 Herbert Xu <herbert@gondor.apana.org.au>
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the Free
- * Software Foundation; either version 2 of the License, or (at your option) 
+ * Software Foundation; either version 2 of the License, or (at your option)
  * any later version.
  *
  */

include/linux/bug.h

diff --git a/include/linux/bug.h b/include/linux/bug.h
index 90831af..cc73612 100644
--- a/include/linux/bug.h
+++ b/include/linux/bug.h
@@ -1,7 +1,7 @@
 /* Copyright (C) 2010 The Chromium OS Authors. All rights reserved.
  * Use of this source code is governed by the GPL v2 license that can
  * be found in the LICENSE file.
- * 
+ *
  * Parts of this file are derived from the Linux kernel from the file with
  * the same name and path under include/.
  */

include/linux/device-mapper.h

diff --git a/include/linux/device-mapper.h b/include/linux/device-mapper.h
index 0d22467..8e19b55 100644
--- a/include/linux/device-mapper.h
+++ b/include/linux/device-mapper.h
@@ -1,7 +1,7 @@
 /* Copyright (C) 2010 The Chromium OS Authors. All rights reserved.
  * Use of this source code is governed by the GPL v2 license that can
  * be found in the LICENSE file.
- * 
+ *
  * Parts of this file are derived from the Linux kernel from the file with
  * the same name and path under include/.
  */

kernel/md5_generic.c

diff --git a/kernel/md5_generic.c b/kernel/md5_generic.c
index ceab5d4..1a9a966 100644
--- a/kernel/md5_generic.c
+++ b/kernel/md5_generic.c
@@ -1,4 +1,4 @@
-/* 
+/*
  * Cryptographic API.
  *
  * MD5 Message Digest Algorithm (RFC1321).
@@ -8,10 +8,10 @@
  *
  * Copyright (c) Cryptoapi developers.
  * Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
- * 
+ *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the Free
- * Software Foundation; either version 2 of the License, or (at your option) 
+ * Software Foundation; either version 2 of the License, or (at your option)
  * any later version.
  *
  */

kernel/sha256_generic.c

diff --git a/kernel/sha256_generic.c b/kernel/sha256_generic.c
index 8de85c3..b759766 100644
--- a/kernel/sha256_generic.c
+++ b/kernel/sha256_generic.c
@@ -13,7 +13,7 @@
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the Free
- * Software Foundation; either version 2 of the License, or (at your option) 
+ * Software Foundation; either version 2 of the License, or (at your option)
  * any later version.
  *
  */